。
Some of the questions are unfair to gorillas.
Literal
Questions [poss-の] among [topic-には] gorilla [to-に] unfair ones [subj-が] exist.
A delightfully unexpected sentence — likely about intelligence tests designed for humans being unfair when applied to gorillas. ~の中には…ものがある is a partitive pattern: 'among X, there are some that Y.' 不公平 ('unfair') is a na-adjective.